Firearm



y Sept. 8, 1925. 1,552,457

c. G. swEBlL'lUs FIREARM original Filed may 17, 1919 l 2 sheen-sheet 1Sept. QJ/'1W C. G.L SWEBILIUS l l FIREARM A Original Filed May 1'7, 19192 Sheets-Sheet 2 ,i Pfeefesepf' 1925 'I l ,y FIREARMS le 'l DELAWARE@ aTb .@Zn'vhomff were@ fe. Belt known "thatfIgGARL GUSTAFSWBP 4l'olefir,concise;and'fexact:decriptionfi if! "Thrsnnvention relates'.toffirearmsjand ,pliertvains more}especially'to' repeating-'for magaziner'l'les of f theV ltake#dowrnf type. In neJ type, of ,takedowng' rifles,the blarrelgis l v .front wall "of the lreceiverf and' preizentgthe.fw25jsuch that when the breech'ir'nfechn'is'mA is in lits locked .upposition, aforward movement roftheaction slide will disconnect"it'rOIlv` .the

' #tion is a. single 'detent which willlhot'h mainlfftiri,andalso limitthe`v forward uno-vement of vtheacton slide toprerentts disengage-v fy35 'ment from the breechfmechanisimwexcept [when the locking Inembersreleased'.

y cartridge feedery lever arm. Afvfurther-.ob-

" v jectofths inventionisfthe mounting ofthe' ,feeder-lever arm: is,lreli e fed. 'and lthe lever "arm *rests Yagainst the Y inner face, ofthe f magazinebottom until `the bottom is'rc'l'oised.

[The cartridgew'feeder is, ,thereforeyysofflol` seated' thatcartridgesmay*beleaeilyinserted' 'in orlremoved 'from the magazine.

A y mien will .be apparenti fljgmthe fellowilg Vented certain new anduseful Improvements nrFirearm's, of-which':the following isaffuljl,

engaged 'with the receiverfby a,rotary.,movie` I. nient. offthe barrel1relative`-l to' 'the' receiver, A reciprocatoryf-nemberfs `carried byvfthe -fvbarreljand is adapted, when'thefbarre-l isjinYproperfpositiompto;"seatin'a reeese' in the ,turningf ofV the barrel.yf This 'ldcking-m'em- ',beriis maintained inflo'ckihg'piosition'by a il-fthe'ybarrel and ,is 'movablerelative tojlthe"Y f flocking member.vThe CQIlGGDn between i l."thefaction slide andthebreechmechanismrie gbreech'mechanism. `Such `forwardmovement ,p ofthe actionv slideisnor'mally prevented/*by y .l-fvanrotherdetent.'v AnV objectl of 'thisvinven' tain .the locking memberin its locking *posi-` Thistypeofglunfis'provided with afbox t pinagazinef the jbottom' offn which ispvoted y and has, mounted thereon yal springpressed I bottomy wherebyYwhenthey magazine bottom". i,'ie'opentheepringpressurel on thecartridge Other obj ectsjand vIviovel y yreatures of zthe' in-Vspecificationand* drawings.whereinllfiglflle f al Vertical sectionlthrough `thev receiver :with i* 'j vtheibree'c'hopen.,thebreechfbolt;etc.floei11gf' y -1- 'in elevation;F1g.f2 is an elevationjpartlygj f 1n section, of thefrontpart of5th'ereceiverand barrel, and' rig. 31S an, eievatiempajruyg r '.1 ilSeCtOIl,Of the receiver'with 17]@l magzine #bottom Openiv f f the barrel' 2intoplaceand thev unsere-wing a breech boltla, vcarrieswjthe'barrel 2,,screwsY into the'forward "ndof'the receiver,

y asV indicated at j, the 'screw' 'threade' y appropriate to permit theready screwingof ably'tubularmember' extend-'S into a Socket 6 Vin thefront wall'of'ftheireceiver, In'fthe forward end of the member 51S @uitvmuon- 1f `v gatedfslot? through which projects a StudSvkv, l' y Irigidly attached to the'. barrel 2.l Bj means* of a vscrew 9 thereconnected to the studiaV dimensions; to ,firmlysupportlfthe tubular`member 5. An aperture` 1.1 is;provided.Ilfw .the tubular p `ml'embertlrough s which fj the" .SCFBW 9 maybe inserted-orremoved.: f" i' Adogor detentlQ is pi otally mountedin .y a groove' 13 cut in 'thec'ylindricalfblockf 10 and its end' llextends beyondthefend','offthemember 5. lOnthei inner endfof thedei:l

tentj 12 isa projection l5, the facefof whichV 1 is oblique. VIny theymember fare cutftwo 7 Y v L apertures 16 vand 17, theformer of wlielfrfsA of a size topermt theprojection ldfoithe Y' A detent 12to.,completely'.V protrude f'tl'iere'-,

through u'nder'proper. conditionsk and the latter of which isefulciently smallgto"allowthefl protrusionlof merelythe'pointofthjeprof- ,:jeetiom The spring 18 'maintains "thel v tentlinopvc-irative position..`

-Sldably mount-ed onthef'tubular Vrnernberf f l" 5 ,is a grip "or, pumpj handle 19 rom which .thefsljding actionrod 20 "entends'rea'rwardl'y'Vinto the receiver through 'a Isuitable slot fin ff. Y

l the front 'wallthereof. ,The connection bee 1 tweemthejaction rod 2Oand the breech bolt Y "la islsuchkthatjwhen' lthe breech boltisjinllocked; position, the action -rodmaybefdi'se Y if Begag-d thereff-Qmmerely' by vvterminal z CLI grip. The barrel is then latter protrudesthrough vthe aperture 16, as

shown in Fig 1. v

To take down the gun, the end of the member 51s grasped with the thumband middle linger and the detent 12 V.operatet with the fore linger-insuch a way as to withdraw'the projection V15 thereof through theaperture 1t. The tubular lmember is then moved outwardly and the detentreleased. The outward movement of the tnbular member is chec red by thecontact of the lforward edgey of the projection 15 with the side oftheaperture 17. "fhismovement disengages the inner end of the member 5from the socket 6. The action rod 2O is then movedforvard by means ofthe grip 19 Auntil it is clear of the receiver, this being possiblebecause of the aforementioned tlc-- tachable connection between thekbreech bolt and th-e action rod and the fact that the projection nolonger extends in front of the unscreived from the receiver. ln puttingtogether the gun, the detent V12 and the tubular member are arrangedwith the projection 15 in the aperture 17 and the handle 19 forward. Thebarrel is thenscrewed into the receiver. A pull on the grip Vslidesrtheaction rod, into .the receiver and into operative engagement with thebreech bolt, and a pull, on the tubular member seats it in the socket 6,the detent being cammed up by the engagement ,of the oblique `face ofthe projection 15 with the rear edge of the aperture 16.

The detent 12 serves to hold the tube 5 in its locking `position andalso serves to limit the forward movement of the action rod when the gunis assembled. T his single detent performs the functions which haveheretofore required two or more .detenta The structure is thereforesimplified and the taking down of the gun made easier and quicker,

In the bottom plate 21 of the receiver 1 is cut an aperture throughwhich extends the box like magazine 22 whichis closed by the pivoted lid23. Pivotally mounted on the lid 23 is a lever 24, the shorter arm ofwhich is engaged by the free end of the leaf spring 25 to urge saidlever into the position shown j in Fig. 3. A plate or cartridge feederV26 VGO is pivoted to the end of the longer arm, and a springY 27cooperates with the forwardend of said feeder to tend to move saidfeeder into alinement with said lever as shown in Fig. 3. J ust inadvance of the trigger guard is a spring pressed plunger 28 whichengages, when thehd is shut, the short armof the lever 24:. As thisspring 1s considerably stronger Vthan the leaf spring 25, it forces thelonger arm of the leve-r 24 upwardly and furnishes theV force to elevatethe cartridges into position to be chambered. The downward movement ofthe plunger 28 is llimited by the stop 29 which'is so arranged that whenthe lid is open the'plunger does not engage the short arm of the lever2a. The lever 24 is, therefore, free to assume the position shown; inFig. 3 under the influence of the spring 25. The realr part of the upperYend of one wall of the magazine is bent in as at 30 to form a stop toposition a cartridge in the path of the member 31 on the breech bolt laand vis slanted upwardly toward the front wall of the receiver to causea cartridge to be tilted by the feeder 26 and it also acts as a guide todirect the cartridge into the barrel 2. A resilient detent 32 cooperateswith a hook 33 on the lid 23 to hold the latter in its closed position.By virtue of this arrangement, when the lid is open the lever 24k isheld against the lid 23 thereby allowing the easyV insertion ofcartridges into vthe magazine. As the lid is closed, the short arm ofthe lever 24 is engaged by the `plunger 28 and the lever is swung intoengagement with cartridges in the magazine to force them upwardly andfeed them successively against the bend in position 30.

It is, of course, understood that variations Yin Vthe structure :of-thisgun may bemade without in any way departing from the spirit of theinvention as set forth in the appended claims.

This application is a division Vof my copending application Serial No.297,329, led May .17, 1919.

Vhat v is claimed is:

1. In a take-down repeating firearm, a receiver, a barrel, meansfor'engaging the barrel with the receiver by a rotary movement of onepart relatively to the other. a member carried by the barrel an-dmovable into and ont of engagement with the receiver to prevent therotation of the barrel relative thereto when theV parts are assembled, areciprocating action rod carried by said inember and arranged to entersaid-receiver, and a detent both to engage said member to lock it inengaging position "with said receiver and to engage the action rod toprevent its withdrawal -from the. receiver.

In a take-down repeating firearm. a receiver, a barrel, means forengaging the barrel with the receiver by a rotary move ment of one partrelatively to the other, a member carried by the barrel and movable intoand out of engagement with the receiver to prevent the rotation of thebarrel relative thereto when the parts are assembled, a reciprocatingaction rod carried by said member and arranged to enter sai-d receiver,and a detent carried by said barrel bot-h to engage said member to loclrit in engaging e. position vvitli said receiverV and to 'engage *tbeaction rod to 5 the receiver. 1

barrel with theA receiver byy a rotary move- Y, ment of'v one ypartrelatively to the other, a vrmember carried bythe barrel andl movable tf into and out of .engagement Witli'the receiver r[lock it in engagingpositionvv'itli fsaid rejk y Yceiver andto engage the action'rodtof'prevent its'vvitbdrawal fromtbereceiver.

l 'barrel Witliftbe receiver'by'a'rotary' 'move'- "*mentofvonepartzrelatively to the other, a

1L into and out of engagement with the receiver y thereto whenthe`partsfare assembled, a recipro'oatingfactionrod carried ,by` saidinemcar'riedp by saidbarrel extending intosaid f recess,lockingmeanslcarred by saidsupport, Y

,fand an vaperture inftbe vvall ofV saidffrecess maintain said memberinengaging n position with the receiver, andl to engage said vaction ,Y5. In a takeedown repeating firearm, a re ceiver," a barrel, means jrforengaging tbe l" barrel` With-,the receiver by a'rotary move-V ment vofone part'relatively tothe otliera member carried by tlievbarrelV andmovable Y rtoprevent tbel rotation of t-lie barrel relative theretoWhenfthe parts are assembled, arey'ciprocating'action rod carried bysaid memi 2 berv and arranged to enter said receivenare- Y -f cessin oneend ofsaidjmember, als'upport fsaid recess, a leverpivoted tosaidfsupport,

fand aperture in tliezwall 'of saidre'cessyalug s on saidl leveradaptedto project vthrough said prevent its withdrawl fromYV,pivotedldet'ent botli to engage saidjmember toiloc'l; it in'` engagingposition vvitlil saidre- .n

c eiver and to engage rvrthe action rod lto Ypre-Y vent its WithdrawalfromV the receiveri y f j? 7 In a take down repeatingfirearmVarkkcei'ver, a barrel, meansv for eng-aging tlie bark 3; In a take-down`repeating kfirearm, ia re-y ceiver, fa barrel, means tfor engagingVvthe -Vto'prevent the rot-ation of tlie'barrel relative thereto whenthe-parts are assembled, a re-l 4. In a ytake-dovvlrrepeating firearm,v,a ,'receiver,y a barrel, means for engaging the i' I lmember. carriedbythe barrel land movable- 'i topreveiit the rotation-of the barrelrelative i L vbei and arrangedy to' enter; said receiver, a recessin oneend offsaidjmember, asupport tlirougl`1'-wliicli'the locking-meansprojectsto i 'rod to prevent the Withdrawaltliereof fromf n p Y pYextending into said. receiver, andiale'ver into andv out ofi engagementWith the receiver carried by-sa'id barrel and eXtending'intov ,Iii Aapepture and engage end?v v0f ,v

f In atake down repeating firearm, are-V i ceiver,a barrel,l meansfor.engaging.tl1e ,l

parts are assembled, Y a f reciprocatinggactiy rod arrangedto enter`said receivenjan'd rel. with the receiver byA a `rotary7,.,movementil i5 of one part ,relativelyto the otbena-a `meinber Carried by `tiiei'mreiand membrana preventV l, rotation of ,Y the .barrel"A vvlienv; the j`parts aref assembled, ,a reciprocating'l action engage vthe action' rodto f8; In a" take dovvn repeating tbe-receiver by la relativerotaryfmovement,

a tubular member'slidably carried by.. tbe.- :f barrel and niovable intolocking engagement ,Y

with said receiver, a sliding action y-rod ein` tending into saidreceiver, and a detentvvith n 'i insaid tubular member both to engagesaid member to lock it inengaging position with @am barrel, means .forengaging theY barrel with 1 rod arranged to enter saidv receiver, and-Jalever pivotally supported fro-infsaid' barrel both "to .engage-said'member` tQylock-jsit in Aengaging Vpositionvvitli- Said receiverV and topreventfits vvtli- -1 .Adr'a'ivalvf'rom the receiver?r` 'l said`VAreceiver andtofengage the action v`rod to prevent its Withdrawal fromthereceiver;r

9511i a take dovvn. repe'atingjfirearm, a 95 i barrel, meansforengagingtlie barrel'vvitlr tbe receiver yby.V arelativerotaryafmovement,ka tubi'ilar ineinberslidably carriedby!l V the barrel andmcvable inftolocking en ,age-1 A ment vvitb said receiver, a isliding@` action rod.pivotally mounted Within said tubular meine'` ber both to engage saidmember'to lock. it in engaging position with said receiver and to engagethe action rod tov preventfits lv vitb- `.f1x`;`1 05fm iirearin, ar 'ydravval from the `receiver'.VV

A10. In a takedown repeating barrel,ineans for engaging vthe 'barrelwith if e' the "receiver by a 'relative' rotary move-5"' ment, a tubularmember slidably carried ktbe barrel and movable into locking .engage-vmentvvith said receiver, a sliding action` rod Y Y i extending into:said receiver, a cylindrical he member carried by'said barreland-located. f

Within said tubularmember, ai'idfaflever pivoted to said ,cylindricalmember, "saidv lever beingadapted to project 'pt lirouglfi an f aperturein said tubular member to maintain Y it in engaging position with'.saidrecei'verg and 'to cngagetbe end ofsaid action rod to lprevent its'Withdrawal from theA receiver. Y

In Witness whereof Ihereuntoattacli my Y' signature tliis 19th day ofDecember 1921@ izo] f

